Grafting of aniline derivatives onto chitosan and their applications for removal of reactive dyes from industrial effluents

Abbasian, Mojtaba; Jaymand, Mehdi; Niroomand, Pouneh; Farnoudian-Habibi, Amir; Karaj-Abad, Saber Ghasemi

doi:10.1016/j.ijbiomac.2016.11.075

Cited by 59 publications

(11 citation statements)

References 51 publications

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“…Small shifts were further observed on the C–H bending vibration of the amide methyl group (1365 cm −1 ), and for the C–O stretching vibrations in chitosan at 1157–1038 cm −1 (1:1 PAni–Cs) and 1157–1035 cm −1 (1:10 PAni–Cs). These minor shifts of peak position were due to some conformational changes and interactions between chitosan and polyaniline [27].…”

Section: Resultsmentioning

confidence: 99%

Synthesis and Characterization of Acetic Acid-Doped Polyaniline and Polyaniline–Chitosan Composite

et al. 2019

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Polyaniline–chitosan (PAni–Cs) composite films were synthesized using a solution casting method with varying PAni concentrations. Polyaniline powders used in the composite synthesis were polymerized using acetic acid as the dopant media. Raman spectroscopy revealed that the PAni powders synthesized using hydrochloric acid and acetic acid did not exhibit significant difference to the chemical features of PAni, implying that PAni was formed in varying concentrations of the dopant media. The presence of agglomerated particles on the surface of the Cs composite, which may have been due to the presence of PAni powders, was observed with scanning electron microscope–energy dispersive X-ray spectroscopy (SEM–EDX). Ultraviolet–visible (UV–Vis) spectroscopy further showed the interaction of PAni with Cs where the Cs characteristic peak shifted to a higher wavelength. Cell viability assay also revealed that the synthesized PAni–Cs composites were nontoxic and may be utilized for future biomedical applications.

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Section: Resultsmentioning

confidence: 99%

Synthesis and Characterization of Acetic Acid-Doped Polyaniline and Polyaniline–Chitosan Composite

et al. 2019

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“…Improved adsorption of the same anionic dye was achieved by preparing a magnetic chitosan grafted with multi-walled carbon nanotubes (Zhu et al 2010), and magnetic chitosan grafted with graphite oxide nanocomposite was able to adsorb the toxic azo dye, Reactive Black 5 (Travlou et al 2013). Chitosan modified by ethylenediamine (Zhou et al 2011) or polyaniline (Abbasian et al 2017) grafting was able to adsorb other anionic azo dyes like Orange 7, Acid Orange 10 acid and red 4 and direct red 23, respectively. A magnetic complex of chitosan and zirconium oxide was a potent adsorbent of food anionic azo dyes like amaranth and tetrazine (Jiang et al 2013a).…”

Section: Industrial Dyesmentioning

confidence: 99%

Chitin/Chitosan: Versatile Ecological, Industrial, and Biomedical Applications

Merzendorfer

Cohen

2019

Biologically-Inspired Systems

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Chitin is a linear polysaccharide of N-acetylglucosamine, which is highly abundant in nature and mainly produced by marine crustaceans. Chitosan is obtained by hydrolytic deacetylation. Both polysaccharides are renewable resources, simply and cost-effectively extracted from waste material of fish industry, mainly crab and shrimp shells. Research over the past five decades has revealed that chitosan, in particular, possesses unique and useful characteristics such as chemical versatility, polyelectrolyte properties, gel-and film-forming ability, high adsorption capacity, antimicrobial and antioxidative properties, low toxicity, and biocompatibility and biodegradability features. A plethora of chemical chitosan derivatives have been synthesized yielding improved materials with suggested or effective applications in water treatment, biosensor engineering, agriculture, food processing and storage, textile additives, cosmetics fabrication, and in veterinary and human medicine. The number of studies in this research field has exploded particularly during the last two decades. Here, we review recent advances in utilizing chitosan and chitosan derivatives in different technical, agricultural, and biomedical fields.

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“…Among them, adsorption has been preferred owing to its low operation cost and high efficiency [4,9]. Various kinds of adsorbents have been reported for dyes removing from water effluent, such as activated carbon [10,11], bentonite [12], and synthesized polymers [13]. Currently, there are increasing interests in utilizing biomass derived materials as a dye adsorbent due to their benign properties, such as acceptable specific strength, low cost, no health risk and sustainability [9,14].…”

Section: Introductionmentioning

confidence: 99%

Stepwise Ethanol-Water Fractionation of Enzymatic Hydrolysis Lignin to Improve Its Performance as a Cationic Dye Adsorbent

et al. 2020

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In this work, lignin fractionation is proposed as an effective approach to reduce the heterogeneity of lignin and improve the adsorption and recycle performances of lignin as a cationic dye adsorbent. By stepwise dissolution of enzymatic hydrolysis lignin in 95% and 80% ethanol solutions, three lignin subdivisions (95% ethanol-soluble subdivision, 80% ethanol-soluble subdivision, and 80% ethanol-insoluble subdivision) were obtained. The three lignin subdivisions were characterized by gel permeation chromatography (GPC), FTIR, 2D-NMR and scanning electron microscopy (SEM), and their adsorption capacities for methylene blue were compared. The results showed that the 80% ethanol-insoluble subdivision exhibited the highest adsorption capacity and its value (396.85 mg/g) was over 0.4 times higher than that of the unfractionated lignin (281.54 mg/g). The increased adsorption capacity was caused by the enhancement of both specific surface area and negative Zeta potential. The maximum monolayer adsorption capacity of 80% ethanol-insoluble subdivision by adsorption kinetics and isotherm studies was found to be 431.1 mg/g, which was much higher than most of reported lignin-based adsorbents. Moreover, the 80% ethanol-insoluble subdivision had much higher regeneration yield (over 90% after 5 recycles) compared with the other two subdivisions. Consequently, the proposed fractionation method is proved to be a novel and efficient non-chemical modification approach that significantly improves adsorption capacity and recyclability of lignin.

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Grafting of aniline derivatives onto chitosan and their applications for removal of reactive dyes from industrial effluents

Cited by 59 publications

References 51 publications

Synthesis and Characterization of Acetic Acid-Doped Polyaniline and Polyaniline–Chitosan Composite

Synthesis and Characterization of Acetic Acid-Doped Polyaniline and Polyaniline–Chitosan Composite

Chitin/Chitosan: Versatile Ecological, Industrial, and Biomedical Applications

Stepwise Ethanol-Water Fractionation of Enzymatic Hydrolysis Lignin to Improve Its Performance as a Cationic Dye Adsorbent

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